Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module

Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module

Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module

B&H # AP1788AD MFR # 1788A-D
Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module

Show MoreLess


Now Viewing:

No Longer Available

Product Highlights

  • 8 Channel
  • Jensen Transformer-Coupled Preamps
  • 1788A-1 Digital Option Installed
  • 5 Simultaneous Outputs per Channel
  • Wordclock I/O
Show moreShow less
Man Behind Layer

B&H $1000 Giveaway

Share your most-wanted item with friends & family for chances to win a $1000 B&H Gift Card. It's that easy!

1 new winner announced every week!
Limit 1 entry per day; Come back every day to increase your chance of winning!

Be sure to mention #BHWishList when you share!

Share on Twitter Share on Facebook

Congrats to our winners so far — Lauren K. & Daniel M.

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (www.bhphoto.com); or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third-party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total three (3) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $1000.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize to the e-mail address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the e-mail account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An e-mail account holder shall mean the natural person assigned to such e-mail account by the internet access or online service provider or other organization responsible for assigning e-mail addresses for the domain associated with such e-mail account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $1,000.00 Giveaway Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only


Already have a B&H account? Just log in tomorrow to enter again!

  • 1Description
The 1788A-D from Aphex is an eight channel, remote controlled microphone preamp with the optional digital output module built-in. The unit addresses many of the noise issues that plague preamps including long microphone level cables, splitters and multiple inputs that reduce the sensitivity of the microphone and change its frequency, phase and transient response. The unit can provide up to five outputs per channel (two analog and three digital), all available simultaneously essentially eliminating the need for splitter boxes.

By placing the 1788A close to the microphones and controlling it remotely, the need for long cable runs is eliminated. Phantom power on a microphone line also causes the line itself to become a microphone. Having the phantom power source as close as possible to the microphone reduces the chance of phantom voltage loss within a very long cable run. A built-in limiter in the front-end of the preamp provides protection against overloading the preamp.

The installed 1788A-1 digital option provides three digital outputs that appear on a single DB15 connector and four BNC connectors for AES/EBU, along with two ADAT optical outputs. The 24-bit analog to digital converters feature selectable sampling rates that can be generated from an internal clock or an external source. The A/D converter circuit is drift stabilized which eliminates DC without resorting to a digital high-pass filter. Wordclock input and output is available on BNC connectors.

The 1788SW controller software (Windows 95/98/2000/XP or Mac OS X compatible) features a screen which displays all parameters and metering of a single unit. Up to 16 units may be called up displaying in real-time all modifiable channel status information and metering. Up to 20 scenes can be saved, modified and recalled. The software also contains a "learn" function in which the channel(s) adjust the preamp gain to a definable peak value based on the input level during the "learn" period.
Eight remote controllable, Jensen transformer-coupled microphone preamps in a 2U rack-mount chassis
Limiter in the front end of the preamp limits the output level of the microphone by as much as 20dB. This allows the engineer to get maximum noise performance and also allows maximum resolution for an analog to digital converter, all without worrying about crashing the preamp
A 26dB pad allows a preamp to be run as a unity gain buffer stage. This allows the line level output of a wireless mic receiver to be fed into the preamp
Output level trims of up to 24dB. Once the maximum input level of the device following the 1788A is defined, the output level of can be trimmed to that exact level. The input gain of the 1788A is then adjusted to achieve optimum performance. In addition to the 24db of output adjustment, each output may be muted
Two separately trimmable, buffered analog outputs. The main output on XLR is transformerless servo-balanced and the second output is transformerless balanced on a DB-25 multi-pin connector. This allows two separate inputs to be fed at optimal levels from an optimized microphone preamp
Includes a 700Hz test tone at two different levels which can be bussed to any selected preamp channel. The two levels are at 0dBfs (maximum output level) and -20dBfs. The test tone at 0dBfs allows easy set up for finding maximum peak input into following stages. The -20dBfs tone is useful for digital systems which use a -20dB reference tone for '0Vu'
LED indicators for the status of each function for each channel. A twelve-segment LED meter displays headroom. Two eight segment LEDs show input gain or maximum output level on either of the two analog outputs. All indicators and metering can be monitored at the remote location
Front panel headphone output - any channel can be selected and the output level adjusted
24-bit analog to digital converters with selectable sampling rates
Three digital outputs
Wordclock input/output on BNC connectors
In the Box
Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module
  • AC Power Cable
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Number of Channels 8
    Multi Function Limiter
    Analog Inputs 8 x XLR
    Input Impedance 1.6 kΩ
    Maximum Input Level +27 dBu (with 26 dB pad engaged)
    Gain Range 26 to 65 dB
    Analog Outputs 8 x XLR Main Output
    1 x 25-pin D-Sub (Tascam pin-out) for Monitor Output
    1 x 1/4" TRS phone Headphones
    Output Impedance 65 Ω balanced
    Maximum Output Level +27 dBu
    Digital Outputs 1 x DB-15 AES/EBU
    4 x BNC AES/EBU (75 Ω)
    2 x TOSLink ADAT optical
    2 x BNC Wordclock I/O
    Clock 44.1, 48, or 96 kHz internal or external
    Headphones 8 to 600 Ω recommended load impedance, mono or stereo
    Phantom Power 48 V
    Frequency Response 10 Hz to 38 kHz, +/-0.5 dB
    THD + N 0.003% @ +4 dBu out
    Noise Hum and Noise: -125 dBu EIN
    Crosstalk Better than -96 dB
    CMRR Better than -99 dB @ 60 Hz, -72 dB @ 10 kHz
    Power Requirements 90~260 VAC, 50/60 Hz
    60W power consumption
    Dimensions (WxDxH) 19 x 13.6 x 3.5" (483 x 345 x 89 mm)
    Weight 17 lb (7.7 kg)
    Specialties MIDI command protocol for full remote control, metering and status
    700 Hz 0 dBfs, -20 dBfs test tone

    Aphex 1788A-D - Remote Controlled Microphone Preamplifier with Digital Output Module Review

    Be the first to review this item
    See any errors on this page? Let us know.